Observations of traveling Pc5 waves and their relation to the magnetic cloud event of January 1997

J. H Clemmons; R. F Pfaff; D. E Larson; O. W Lennartsson; F. S Mozer; H. J Singer; W. K Peterson; J. D Scudder; C. A Kletzing; P. J Chi; D. D Wallis

doi:10.1029/1999JA900418

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Observations of traveling Pc5 waves and their relation to the magnetic cloud event of January 1997

Journal article

Peer reviewed

Observations of traveling Pc5 waves and their relation to the magnetic cloud event of January 1997

J. H Clemmons, R. F Pfaff, D. E Larson, O. W Lennartsson, F. S Mozer, H. J Singer, W. K Peterson, J. D Scudder, C. A Kletzing, P. J Chi, …

Journal of geophysical research, Vol.105(A3), pp.5441-5452

2000

DOI: 10.1029/1999JA900418

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Abstract

Measurements of ULF waves in the Pc5 frequency range are presented and discussed. The waves were observed during the magnetic cloud event of January 1997 by instruments on the Polar satellite and ground instrumentation. These large-amplitude waves are best interpreted as traveling shear Alfvén waves rather than in the usual standing-wave scenario. Characterization of the associated complex particle environment shows that the waves were largely confined to the plasma trough. Energetic protons modulated by the wave are shown to have caused modulated proton aurora. It is argued that the waves were caused by the interaction of a magnetic hole with the magnetosphere.

Earth, ocean, space

Exact sciences and technology

External geophysics

Magnetic pulsations

Physics of the magnetosphere

Details

Title: Subtitle: Observations of traveling Pc5 waves and their relation to the magnetic cloud event of January 1997
Creators: J. H Clemmons - The Aerospace Corporation
R. F Pfaff - NASA/Goddard Space Flight Center, Greenbelt, Maryland, United States
D. E Larson - University of California, Berkeley
O. W Lennartsson - Lockheed Martin Missiles & Space, Palo Alto, California, United States
F. S Mozer - University of California, Berkeley
H. J Singer - NOAA/Space Environment Center, Boulder, Colorado, United States
W. K Peterson - Lockheed Martin Missiles & Space, Palo Alto, California, United States
J. D Scudder - University of Iowa
C. A Kletzing - University of Iowa
P. J Chi - Institute for Geophysics and Planetary Physics, University of California, Los Angeles, California, United States
D. D Wallis - Magnametrics, Ottawa, Ontario, Canada
Resource Type: Journal article
Publication Details: Journal of geophysical research, Vol.105(A3), pp.5441-5452
DOI: 10.1029/1999JA900418
ISSN: 0148-0227
eISSN: 2156-2202
Publisher: American Geophysical Union
Language: English
Date published: 2000
Academic Unit: Physics and Astronomy
Record Identifier: 9984199719402771

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